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[ie/abematv] Adapt key retrieval to request handler framework (#10491)

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Fixes a regression caused by a dependence on buggy behavior that was corrected in 150ecc45d9

Closes #10489
Authored by: bashonly
This commit is contained in:
bashonly 2024-07-18 15:43:31 -05:00 committed by GitHub
parent e046db8a11
commit a3bab4752a
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1 changed files with 29 additions and 38 deletions
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67
yt_dlp/extractor/abematv.py
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@ -9,12 +9,12 @@ import re
import struct import struct
import time import time
import urllib.parse import urllib.parse
import urllib.request
import urllib.response
import uuid import uuid
from .common import InfoExtractor from .common import InfoExtractor
from ..aes import aes_ecb_decrypt from ..aes import aes_ecb_decrypt
from ..networking import RequestHandler, Response
from ..networking.exceptions import TransportError
from ..utils import ( from ..utils import (
ExtractorError, ExtractorError,
OnDemandPagedList, OnDemandPagedList,
@ -26,37 +26,36 @@ from ..utils import (
traverse_obj, traverse_obj,
update_url_query, update_url_query,
) )
from ..utils.networking import clean_proxies
def add_opener(ydl, handler): # FIXME: Create proper API in .networking class AbemaLicenseRH(RequestHandler):
"""Add a handler for opening URLs, like _download_webpage""" _SUPPORTED_URL_SCHEMES = ('abematv-license',)
# https://github.com/python/cpython/blob/main/Lib/urllib/request.py#L426 _SUPPORTED_PROXY_SCHEMES = None
# https://github.com/python/cpython/blob/main/Lib/urllib/request.py#L605 _SUPPORTED_FEATURES = None
rh = ydl._request_director.handlers['Urllib'] RH_NAME = 'abematv_license'
if 'abematv-license' in rh._SUPPORTED_URL_SCHEMES:
return
headers = ydl.params['http_headers'].copy()
proxies = ydl.proxies.copy()
clean_proxies(proxies, headers)
opener = rh._get_instance(cookiejar=ydl.cookiejar, proxies=proxies)
assert isinstance(opener, urllib.request.OpenerDirector)
opener.add_handler(handler)
rh._SUPPORTED_URL_SCHEMES = (*rh._SUPPORTED_URL_SCHEMES, 'abematv-license')
_STRTABLE = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
_HKEY = b'3AF0298C219469522A313570E8583005A642E73EDD58E3EA2FB7339D3DF1597E'
class AbemaLicenseHandler(urllib.request.BaseHandler): def __init__(self, *, ie: 'AbemaTVIE', **kwargs):
handler_order = 499 super().__init__(**kwargs)
STRTABLE = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
HKEY = b'3AF0298C219469522A313570E8583005A642E73EDD58E3EA2FB7339D3DF1597E'
def __init__(self, ie: 'AbemaTVIE'):
# the protocol that this should really handle is 'abematv-license://'
# abematv_license_open is just a placeholder for development purposes
# ref. https://github.com/python/cpython/blob/f4c03484da59049eb62a9bf7777b963e2267d187/Lib/urllib/request.py#L510
setattr(self, 'abematv-license_open', getattr(self, 'abematv_license_open', None))
self.ie = ie self.ie = ie
def _send(self, request):
url = request.url
ticket = urllib.parse.urlparse(url).netloc
try:
response_data = self._get_videokey_from_ticket(ticket)
except ExtractorError as e:
raise TransportError(cause=e.cause) from e
except (IndexError, KeyError, TypeError) as e:
raise TransportError(cause=repr(e)) from e
return Response(
io.BytesIO(response_data), url,
headers={'Content-Length': str(len(response_data))})
def _get_videokey_from_ticket(self, ticket): def _get_videokey_from_ticket(self, ticket):
to_show = self.ie.get_param('verbose', False) to_show = self.ie.get_param('verbose', False)
media_token = self.ie._get_media_token(to_show=to_show) media_token = self.ie._get_media_token(to_show=to_show)
@ -72,25 +71,17 @@ class AbemaLicenseHandler(urllib.request.BaseHandler):
'Content-Type': 'application/json', 'Content-Type': 'application/json',
}) })
res = decode_base_n(license_response['k'], table=self.STRTABLE) res = decode_base_n(license_response['k'], table=self._STRTABLE)
encvideokey = bytes_to_intlist(struct.pack('>QQ', res >> 64, res & 0xffffffffffffffff)) encvideokey = bytes_to_intlist(struct.pack('>QQ', res >> 64, res & 0xffffffffffffffff))
h = hmac.new( h = hmac.new(
binascii.unhexlify(self.HKEY), binascii.unhexlify(self._HKEY),
(license_response['cid'] + self.ie._DEVICE_ID).encode(), (license_response['cid'] + self.ie._DEVICE_ID).encode(),
digestmod=hashlib.sha256) digestmod=hashlib.sha256)
enckey = bytes_to_intlist(h.digest()) enckey = bytes_to_intlist(h.digest())
return intlist_to_bytes(aes_ecb_decrypt(encvideokey, enckey)) return intlist_to_bytes(aes_ecb_decrypt(encvideokey, enckey))
def abematv_license_open(self, url):
url = url.get_full_url() if isinstance(url, urllib.request.Request) else url
ticket = urllib.parse.urlparse(url).netloc
response_data = self._get_videokey_from_ticket(ticket)
return urllib.response.addinfourl(io.BytesIO(response_data), headers={
'Content-Length': str(len(response_data)),
}, url=url, code=200)
class AbemaTVBaseIE(InfoExtractor): class AbemaTVBaseIE(InfoExtractor):
_NETRC_MACHINE = 'abematv' _NETRC_MACHINE = 'abematv'
@ -139,7 +130,7 @@ class AbemaTVBaseIE(InfoExtractor):
if self._USERTOKEN: if self._USERTOKEN:
return self._USERTOKEN return self._USERTOKEN
add_opener(self._downloader, AbemaLicenseHandler(self)) self._downloader._request_director.add_handler(AbemaLicenseRH(ie=self, logger=None))
username, _ = self._get_login_info() username, _ = self._get_login_info()
auth_cache = username and self.cache.load(self._NETRC_MACHINE, username, min_ver='2024.01.19') auth_cache = username and self.cache.load(self._NETRC_MACHINE, username, min_ver='2024.01.19')